Global Parts 1815055 Ignition Knock (Detonation) Sensor

Ignition Knock Sensor for Mercedes-Benz Applications

Global Parts 1815055 is an ignition knock sensor that monitors engine vibration patterns and reports abnormal combustion events to the engine management system. It is built with a female oval connector, 4 terminals, and a blade-style terminal design for the listed Mercedes-Benz applications.

Key Features

• Ignition knock (detonation) sensor for engine knock detection
• Female oval connector with 1 connector and 4 terminals
• Blade terminal type for the specified OE-style connection
• Fits a range of Mercedes-Benz C43 AMG, E-Class, GLE, GLS, S-Class, SL, and related models
• Global Parts part number 1815055

Detailed Description

The knock sensor is mounted on the engine block, cylinder head, or intake manifold, where it senses unusual vibrations caused by pre-ignition or detonation. On Mercedes-Benz vehicles such as the C43 AMG, GLC43 AMG, E400, GLE400, and S450, a properly functioning sensor helps the engine control system recognize abnormal combustion and respond with the correct timing adjustments. This Global Parts 1815055 sensor is listed for 2022, 2019, 2018, 2017, and 2016 model years across the covered applications.

This part cross-references Standard Ignition KS449 for the same application.

Vehicle Fitment

• Fits 2022 Mercedes-Benz C43 AMG, N/A
• Fits 2017-2019 Mercedes-Benz C43 AMG, N/A
• Fits 2022 Mercedes-Benz GLC43 AMG, N/A
• Fits 2017-2019 Mercedes-Benz GLC43 AMG, N/A
• Fits 2019 Mercedes-Benz E450, N/A
• Fits 2019 Mercedes-Benz GLE400, N/A
• Fits 2016-2017 Mercedes-Benz GLE400, N/A
• Fits 2017-2019 Mercedes-Benz GLE43 AMG, N/A
• Fits 2017-2019 Mercedes-Benz GLS450, N/A
• Fits 2018-2019 Mercedes-Benz S450, N/A
• Fits 2017-2019 Mercedes-Benz SL450, N/A
• Fits 2017-2019 Mercedes-Benz SLC43 AMG, N/A
• Fits 2016-2018 Mercedes-Benz E400, N/A
• Fits 2017-2018 Mercedes-Benz E43 AMG, N/A
• Fits 2016-2018 Mercedes-Benz GLE550e, N/A
• Fits 2016-2017 Mercedes-Benz S550e, N/A
• Fits 2016 Mercedes-Benz C450 AMG, N/A
• Fits 2016 Mercedes-Benz CLS400, N/A
• Fits 2016 Mercedes-Benz GL450, N/A
• Fits 2016 Mercedes-Benz GLE450 AMG, N/A
• Fits 2016 Mercedes-Benz SL400, N/A

What It Helps Address

• Check engine light related to knock sensor circuit faults
• Engine pinging, spark knock, or detonation detection issues
• Rough running caused by incorrect ignition timing response
• Reduced engine performance from inaccurate combustion feedback
• Diagnostic trouble codes tied to abnormal vibration sensing

Installation Notes and Tips

Confirm connector shape, terminal count, and mounting location before installation. Because the sensor is used to detect engine vibration at the block, head, or intake manifold, proper seating and secure electrical connection are important for accurate signal transfer. Verify the vehicle application by year and model, including Mercedes-Benz C43 AMG, GLC43 AMG, and E400 listings, before ordering Global Parts 1815055.

Quality Assurance

Global Parts 1815055 is cataloged as an emission control sensor built to match the listed OE-style fitment and connector configuration for the specified Mercedes-Benz applications.